Portable furnace for-tinners



(No Model.)

P. J. FITZGERALD,

PORTABLE FURNAGE FOR TINNERS.

N. PETERS, Phomulhagmpher. wnshiugmn, D, C.

l lUNI'rEn S'IAIES ATENI Prien@ PETER J. EITZGERALD, or PHILADELPHIA, PENNSYLVANIA.

PORTABLE FURNACE FOR WINNERS..

SPECIFTCATTON forming part of Letters Patent No. 330,218, dated4 November 10, 1885.

Application tiled August 17, 1883. Serial No. 103,998.

To all whom it may concern:

Be it known that I, PETER J. FITZGERALD, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in Portable Furnaces for Plumbers, Tinners, Src, of which the following is a specification.

My invention relates to portable furnaces for tinners and plumbers, the object being to provide means for holding and supporting a meltingkettle in which solder may be melted.

The object of my invention I accomplish in the manner and by the means hereinafter described and specifically claimed, reference being had to the accompanying drawings, in which- Figure l is a view, partly in section and partly in elevation, of a furnace embodying my invention. Fig. 2 is a detail sectional view of the retort.

A in said drawings represents a metallic cis tern of suitable dimensions and of cylindrical or other convenient form, and is hermetically closed by a castiron cover, A', which may be provided with the ordinary opening and screwplug,whereby a filling-inlet is formed for supplying the cistern with oil. The said cistern should be lled a little more than half full of a suitable hydrocarbon-such as gasolinehaving a spccic gravity of seventy-five degrees. Through the cover A, near its edge, is tapped an oil-supply tube B, which should eX- tend nearly to the bottom of the cistern, and be provided with a wiregauze strainer to prevent sediment from entering the tube. The upper end of the pipe extends vertically some inches above the cover,where it has an elbow, into which is screwed a horizontal arm, b', to which is attached the retort G. This device, which is composed of hard metal, has a long horizontal arm or branch, c, having an enlarged diameter, and a short arm, ce', projecting downwardly, which connects with a pipe carrying a valve and an oil-cup, F, whereby oil from the retort can be supplied to the oil-cup in regulated quantities by the said valve.

(No model.)

G represents a vent-pipe, which is tapped through the cover A. By applying thereto any suitable pump air may be compressed within the cistern to such a degree as to drive the oil up through the supply-pipe B and through the horizontal arm b. It passes thence into the retort, down through the short vertical arm c thereof to the valve and oil-cup F, where it is volatilized and burned. I make no claim to the retort and oil volatilizing and burning devices, as any of the constructions in ordinary use will answer all the purposes of my invention.

P2 designates a hood,which consists of a circular upwardly-liaring pipe resting upon the lid A, having perforation f2, to allow draft, and slotted to permit the passage of the arm b', arm c', and stem of the valve connected with the retort. At a point not far from its center an iron ring, R', is attached, which is provided with perforated lugs r, so arranged that they will engage with vertical supports I, screwed into the bosses H on the cover A. The upper ends of these supports are screw-threaded to receive the nuts t', upon which the ring R rests, being securely held thereto by jam-nuts i. Above the ring R are placed supports or protectingrbs R2, between which the melting-kettle is placed, as shown by the dotted lines.`

Vhen necessary, arlighting device may be used in connection with my furnace, which may be constructed as follows: Upon the retort C is formed a horizontal arm, C', communicating with the retort by an aperture, n. To this arm is attached a gaspipe, N, having a burner-tip, t, by a connection, N', illed with asbestus a. The gasburner consists of the vertical branch P, having an attachingarm, R, valve-chamber p, valve s, and valve-stem S. The upper end of the burner has a threaded connection, T, upon which is screwed a sleeve, T', upon which are formed the heat-conductors t. u is an opening to admit atmospheric air to aid combustion.

What I claim is- A portable furnace for plumbers and tinners use, composed of an oil reservoir or cis tern, A, having cover A, an oil-supply pipe, In testimony whereof I have hereunto set B, having retort C and burner, the uprights my hand inthe presence of two subscribing I I I, detachable hood P2, 'having an inner Witnesses.

ring with lugs which engage with said up- 1 PETER J. FITZGERALD. 5 rights, and vertical ribs R2, arranged 'upon- Witnesses:

said ring to support a melting-kettle, sub- JAMES L. NORRIS,

stantially as described. A. NORRIS. 

